/* ====================== BUTTON STYLES ====================== */
.btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 400;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    font-size: 0.95rem;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 7px 20px rgba(106, 17, 203, 0.5);
}

.btn:active {
    transform: translateY(-1px);
}

.btn.small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn.large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Button Variants */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color), #22c55e);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-color), #f59e0b);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), #dc2626);
}

.btn-secondary {
    background: var(--input-bg);
    color: var(--text-primary);
    border: 1px solid var(--input-border);
}

.btn-secondary:hover {
    background: var(--card-bg);
    border-color: var(--primary-color);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

/* Icon Buttons */
.icon-btn {
    width: 42px;
    height: 42px;
    border: none;
    border-radius: 12px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    position: relative;
}

.icon-btn:hover {
    background: rgba(106, 17, 203, 0.1);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.icon-btn:active {
    transform: translateY(0);
}

.icon-btn-small {
    width: 36px;
    height: 36px;
    font-size: 1rem;
}

.icon-btn-large {
    width: 50px;
    height: 50px;
    font-size: 1.3rem;
}

/* Special Buttons */
.send-btn {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 14px;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(106, 17, 203, 0.3);
}

.send-btn:hover {
    transform: translateY(-3px) rotate(5deg);
    box-shadow: 0 6px 20px rgba(106, 17, 203, 0.4);
}

.send-btn:active {
    transform: translateY(-1px);
}

.login-btn {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 1rem;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    box-shadow: 0 4px 15px rgba(106, 17, 203, 0.3);
    transition: all 0.3s ease;
}

.login-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(106, 17, 203, 0.4);
}

/* Room Action Buttons */
.room-action-btn {
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    background: transparent;
    color: var(--text-primary);
}

.room-action-btn:hover {
    transform: translateY(-2px);
}

.room-action-btn:active {
    transform: translateY(0);
}

#invite-btn:hover {
    box-shadow: 0 3px 10px rgba(16, 185, 129, 0.35);
}

#create-room-btn:hover {
    box-shadow: 0 3px 10px rgba(0, 198, 255, 0.35);
}

/* Item Toggle Buttons */
.item-toggle-btn {
    background: var(--success-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.item-toggle-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.item-toggle-btn.active {
    background: var(--danger-color);
}

.item-activate-btn {
    background: var(--success-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.8rem;
}

.item-activate-btn:hover {
    transform: translateY(-2px);
}

.item-activate-btn.active {
    background: var(--danger-color) !important;
}

/* Share Buttons */
.share-btn {
    padding: 0.75rem;
    border: none;
    border-radius: 10px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.share-btn.whatsapp {
    background: linear-gradient(135deg, #25D366, #128C7E);
    color: white;
}

.share-btn.telegram {
    background: linear-gradient(135deg, #0088cc, #005c8a);
    color: white;
}

.share-btn.twitter {
    background: linear-gradient(135deg, #1DA1F2, #0d8bd9);
    color: white;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Profile Action Buttons */
.profile-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem;
    background: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    text-decoration: none;
}

.profile-action-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.profile-action-btn.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.profile-action-btn i {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

/* Disabled State */
.btn:disabled,
.icon-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.btn:disabled:hover,
.icon-btn:disabled:hover {
    transform: none !important;
    box-shadow: none !important;
}